master:exci35defn parametersPSCAD exci35defn
Every parameter of the PSCAD exci35defn (master:exci35defn): 19 names, with the unit, the default and the meaning PSCAD gives each one. Copy a name into parameters().
What master:exci35defn is
exci35defn (SCRX Exciter), a component of PSCAD's Master Library, filed under machines, exciters and governors.
- Definition
master:exci35defn- PSCAD name
- exci35defn
- Category
- Machines, exciters and governors
- Parameters
- 19, in 2 groups; 9 carry a unit
- Read from
- PSCAD 5.0.0, 2026-11-07
Read and write master:exci35defn in Python
import mhi.pscad
pscad = mhi.pscad.connect() # the PSCAD that is open; launch() starts one
project = pscad.project("my_case") # a case loaded in the workspace
for comp in project.find_all("master:exci35defn"): # the exact definition, namespace first
params = comp.parameters() # every parameter, as PSCAD holds it
print(str(params["Emax"])) # Maximum Field Voltage, in pu
comp = project.find_all("master:exci35defn")[0]
comp.parameters(Emax="10 [pu]") # a value that carries a unit is written with it- A parameter is named exactly as in the table, letter case included:
parameters()gives every one of them in a dictionary, and a name the component does not have is refused. - A value that carries a unit comes back as a number whose unit is only in its text, so read it as text first (
str(...)) or the unit is lost. PSCAD keeps a written unit as it is given:"2500 [mohm]"stays in mohm. - A Choice is read and written as its symbol (the capitals in "Written as"), not as the words PSCAD shows in the dialog.
find_all()takes the exact definition only. A wildcard or a bare name withoutmaster:comes back empty; the Builder'spx_findwalks the pages for those.
The Builder's runtime does the same with the unit handled for you: px_get(comp, "Emax") and px_set(...), which also records the old value so the case is put back at the end. Getting started shows them.
Monitoring Internal Variables
| Parameter | Unit | Default | Description |
|---|---|---|---|
Chn1Text | · | · | Name for first monitored output |
Chn2Text | · | · | Name for second monitored output |
Mon1Integer | · | 1 | Monitor internal storage NEXC +Range 1 to 35 |
Mon2Integer | · | 1 | Monitor internal storage NEXC +Range 1 to 35 |
Exciter Data and Options
| Parameter | Unit | Default | Description |
|---|---|---|---|
EmaxReal | pu | 5 | Maximum Field VoltageRange 0 to 100 |
EminReal | pu | -5 | Minimum Field VoltageRange -100 to 0 |
GainReal | pu | 100 | Exciter GainAt least 1e-006 |
ICIfInteger | · | 1 | Init. If from If input ? (0 or 1)Range 0 to 1 |
ICVmInteger | · | 1 | Initial Vmeas = Vrefpu ? (0 or 1)Range 0 to 1 |
NaiqkInteger | · | 0 | Icon input: bypass lead-lag (0,1)Range 0 to 1 |
NdiodInteger | · | 1 | Block -ve Field Crt. (0=No, 1=Yes)Range 0 to 1 |
NsepsInteger | · | 1 | Bus (0) or Independent (1) SupplyRange 0 to 1 |
NvrfxInteger | · | 1 | Offset Initial Droop ? (0 or 1)Range 0 to 1 |
RrevReal | pu | 15000 | Reverse ResistanceAt least 1 |
T1llgReal | s | 1.5 | Controller Lead Time ConstantAt least 0.001 |
T2llgReal | s | 1.0 | Controller Lag Time ConstantAt least 0.001 |
Trp1Real | s | 0.02 | Measured ac Voltage Time ConstantAt least 0.0001 |
TrpeReal | s | 0.02 | Exciter Time ConstantAt least 0.0001 |
VbaseReal | kV | 7.967 | System ac Voltage Base: L-NAt least 1e-006 |
Related
- All 345 definitions in the component reference
- Control tuning: overshoot, rise time and damping
- PSCAD automation with Python: getting started
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